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1986年,我们对一块5～6年内未种过蔬菜,只种过一些木本花和柑桔的番茄地里的青枯病发生情况进行了调查,使我们认识到,番茄中耕时应“少伤根、力增温、忌积水(包括含水过多)”。否则不仅影响了番茄的正常生育,而且会发生严重的青枯病,影响产量。现将我们的调查结果报告如下: 1.中耕次数宜少不宜多一般在移栽活棵后和座果前结合培土各中耕1次。调查的5块地,共189株,5月下旬以前中耕4～5次的,发病率为52.8％;中耕过2次的3块番茄地,共143株,发病率为25.3％;2块移植活棵后中耕过1次的57株番茄田则未见病株。我们调查
In 1986, we investigated the occurrence of bacterial wilt in a tomato field that had not been planted with vegetables and only some woody flowers and oranges within 5 to 6 years. This led us to realize that when cultivating tomatoes, “less Injury root, force warming, avoid water (including excessive water) ”. Otherwise, it not only affects the normal growth of tomato, but also serious bacterial wilt, affecting the yield. Now we report the findings as follows: 1. The number of cultivated should be less should not be more general in the transplanting live after the fruit trees and the combination of cultivated soil cultivated 1 time. A total of 189 plots of 5 plots were surveyed, and the incidence rate was 52.8% after cultivating 4 to 5 times before late May. There were 143 tomato plants with 2 times inoculation, the incidence rate was 25.3%. Two transplants Fifty-seven tomato cultivars that had been planted once after planting live trees had no disease strains. We investigate